Retrying socket connection failure times can be made as configurable
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Key: HADOOP-7086
URL: https://issues.apache.org/jira/browse/HADOOP-7086
Project: Hadoop Common
Issue Type: Improvement
Components: conf
Affects Versions: 0.21.0
Environment: NA
Reporter: Devaraj K
Priority: Minor
Fix For: 0.22.0
Retrying socket connection failure times are hard coded as 45 and it is giving
the retryring message for 45 times as below.
2011-01-04 15:14:30,700 INFO ipc.Client
(Client.java:handleConnectionFailure(487)) - Retrying connect to server:
/10.18.52.124:50020. Already tried 1 time(s).
This can be made as configurable and also we can keep the default value as 45.
If the user wants to decrease/increase, they can add this configurable
property otherwise it can continue with the default value.
common\src\java\org\apache\hadoop\ipc\Client.java:
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private synchronized void setupConnection() throws IOException {
short ioFailures = 0;
short timeoutFailures = 0;
while (true) {
try {
this.socket = socketFactory.createSocket();
this.socket.setTcpNoDelay(tcpNoDelay);
// connection time out is 20s
NetUtils.connect(this.socket, remoteId.getAddress(), 20000);
if (rpcTimeout > 0) {
pingInterval = rpcTimeout; // rpcTimeout overwrites pingInterval
}
this.socket.setSoTimeout(pingInterval);
return;
} catch (SocketTimeoutException toe) {
/*
* The max number of retries is 45, which amounts to 20s*45 = 15
* minutes retries.
*/
handleConnectionFailure(timeoutFailures++, 45, toe);
} catch (IOException ie) {
handleConnectionFailure(ioFailures++, maxRetries, ie);
}
}
}
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